With the USB Vacuum Mouse, you'll have no choice but to leave it out and vacuum all the time. As this optical mouse scans the desk, you'll be vacuuming dust and dirt from a small vacuum hole.

It's not as perfect as it seems, though. The dirt packs into a teeny 'dust reservoir' in the back of the gadget that will need to be frequently emptied, but you can switch on or off the 'cleaning process' at any time. You'll still need to give your desk a good wipe down occasionally. But this could be perfect for neat freaks to keep spotless between house cleanings.

If this is just what you've been looking for to keep your desk spotless, check it out for only $12.69 from UXSight.